<template>
  <div class="app-container">
    <!-- 顶部 Header区域 -->
    <mt-header fixed title="VUE项目-移动端">
      <span slot="left" @click="goBack" v-show="flag">
        <mt-button icon="back">返回</mt-button>
      </span>
    </mt-header>

    <!-- 中间的 路由 router-view 区域 -->
	<transition>
	<router-view></router-view>
	</transition>

    <!-- 底部的 Tabbar 区域 -->
    <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-syq" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-syq" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-syq" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
					<span class="mui-badge" id="badge">{{this.$store.getters.getAllCount}}</span>
				</span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-syq" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    <!-- <h1>这是APP组件</h1> -->
  </div>
</template>

<script>
export default{
  data() {
    return {
      flag: false
    }
  },
  created() {
    this.flag = this.$route.path == "/home" ? false : true;
  },
  methods: {
    goBack(){
      // 点击后退
      this.$router.go(-1);
    }
  },
  watch: {
    '$route.path':function(newV){
      if (newV === '/home') {
        this.flag = false;
      }else{
        this.flag = true;
      }
    }
  },
}
</script>

<style lang="scss" scoped>
.mint-header.is-fixed{
	z-index: 99;
}

.app-container {
  padding-top: 40px;
  padding-bottom: 50.4px;
  overflow-x: hidden;
}

.v-enter{
	opacity: 0;
	transform: translateX(100%);
}
.v-leave-to{
	opacity: 0;
	transform: translateX(-100%);
	position: absolute;
}

.v-enter-active,
.v-leave-active{
	transition: all 0.5s ease;
}

// 该类别 解决 tabbar 点击无法切换路由的问题
.mui-bar-tab .mui-tab-item-syq.mui-active {
    color: #007aff;
}
.mui-bar-tab .mui-tab-item-syq {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item-syq .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-syq .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
</style>